EP 4261266 A1 20231018 - STABLE AND EFFICIENT LIGHT-EMITTING ALL-INORGANIC CALCIUM FLUORIDE PEROVSKITE QUANTUM DOT, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Title (en)
STABLE AND EFFICIENT LIGHT-EMITTING ALL-INORGANIC CALCIUM FLUORIDE PEROVSKITE QUANTUM DOT, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Title (de)
STABILER UND EFFIZIENTER LICHTEMITTIERENDER ALLANORGANISCHER CALCIUMFLUORID-PEROWSKIT-QUANTENPUNKT, HERSTELLUNGSVERFAHREN DAFÜR UND ANWENDUNG DAVON
Title (fr)
POINT QUANTIQUE ÉLECTROLUMINESCENT, STABLE ET EFFICACE, DE PÉROVSKITE AU FLUORURE DE CALCIUM TOUT INORGANIQUE, PROCÉDÉ DE PRÉPARATION ASSOCIÉ ET SON APPLICATION
Publication
Application
Priority
CN 2020135881 W 20201211
Abstract (en)
A stable and efficient light-emitting all-inorganic calcium fluoride perovskite quantum dot, a preparation method therefor, and an application thereof. The all-inorganic calcium fluoride perovskite quantum dot is prepared by a simple high-temperature hot injection method, and the prepared all-inorganic calcium fluoride perovskite quantum dot has good dispersibility, uniformity and repeatability. Due to the protection of fluorine ions on a CsPbX<sub>3</sub> quantum dot, the all-inorganic calcium fluoride perovskite quantum dot has stronger fluorescence emission and better stability than a pure CsPbX<sub>3</sub> quantum dot; and the all-inorganic calcium fluoride perovskite quantum dot has a fluorescence quantum yield of about 100% and a fluorescence lifetime that single-exponentially decays, and can still emit dazzling fluorescence after one year. The all-inorganic calcium fluoride perovskite quantum dot can be used as a stable and efficient nano-luminescent material, and has potential application prospects in the fields of photoelectric and photovoltaic devices and the like.
IPC 8 full level
C09K 11/66 (2006.01); B82Y 20/00 (2011.01); C09K 11/61 (2006.01)
CPC (source: EP)
C09K 11/665 (2013.01); B82Y 20/00 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4261266 A1 20231018; EP 4261266 A4 20240221; WO 2022120832 A1 20220616
DOCDB simple family (application)
EP 20964768 A 20201211; CN 2020135881 W 20201211